PR c++/50958
gcc/cp/
	* parser.c (lookup_literal_operator): New.
	(cp_parser_userdef_char_literal): Use it.
	(cp_parser_userdef_numeric_literal): Use it.
	(cp_parser_userdef_string_literal): Use lookup_name.
libcpp/
	* expr.c (cpp_userdef_char_remove_type): Fix typo.

From-SVN: r181595